Please help me with the task: Count total number of zeros

👩‍💻 Task Questions 👦 C# Intermediate Chapter 5️⃣
1

Hello, I’m working on this task:

Slightly modify the method AnalyzeString from the previous task. It should take two parameters, string input and ref int numberOfZeros. The method should add the number of zeros that it finds in input to numberOfZeros. From the Main method, read an integer count from the console. Then, read count strings from the console. Call AnalyzeString for every one of them. If all strings are empty, the output should be ‘All strings are invalid.’ - otherwise, output the total number of zeros in all strings.
Example 1:
>4
>I am y0ur father
>H0ust0n, we have a pr0blem
>Winter is c0mming
>B0nd. James B0nd
7
Example 2:
>2
>
>
All strings are invalid.

Here is my code:


namespace ParametersToMethods
{
   class HowManyZer0s
   {
       static void Main()
       {
           int count = int.Parse(Console.ReadLine());
           int numberOfZeros = 0;
           string input = Console.ReadLine();
           for (int i = 0; i < count; i++)
           {
               input = Console.ReadLine();
               AnalyzeString(input, ref numberOfZeros);

           if (AnalyzeString(input, ref numberOfZeros))
               {
                   Console.WriteLine(numberOfZeros);
               }
               else
               {
               Console.WriteLine("All strings are invalid.");
               }
       }   
       static bool AnalyzeString(string input, ref int numberOfZeros)
       {
          numberOfZeros = 0;
          if (!string.IsNullOrEmpty(input))
          {               
              for (int i = 0; i < input.Length; i++)
              {  
                  if (input[i] == '0')
                  {
                      numberOfZeros++;
                  }
              }
           return true;
          }
          else
          {
              return false;
          }
      }
  }
}

Can anyone please help me to solve it?